Lateral-motion appliance for locomotive driving boxes



sa. 21. m24. 1,512,449

f J. G. BLUNT L'ATERAL vMOTION APPLIANCE FOR LOcoMoTIvE DRIVING BOXES f Filed May 15. 1923 s sheets-sheet 2 Patented @et 21, 1924.

narran stares FTN @FFME JAMES G. BLNT, OF SCHENECTADY, NEW' YORK.

Application filed May 15,

T 0 all w71 om t may concern.'

Be it known that l, Janes G. BLUNT, a citizen of the United States, residing at Schenectady, in the county of Schenectady and State of New York, have invented a certain new and useful improvement in Lateral-Motion Appliances for Locomotive Driving Boxes, of which improvement the following is a specification.

My invention relates to means for aifording and controlling lateral motion in the driving boxes of locomotive engines, and its object is to provide an appliance of such type which shall be of simple and substantial construction, readily applicable in 4present standard designs of locomotives, and in the operation of which the full amount of lateral displacement of the axle shall be made available in the movement of the boxes, in any or all of the driving axles of a locomotive having a comparatively long wheel base, thus making possible the ab'- sorption of all curved rail shocks on all the driving axles.

The improvement claimed 'is hereinafter fully set forth.

In the accompanying drawings:r Figure 1 is a diagrammatic side view, in elevation, of a Mikado type locomotive, illustrating an embodiment of my invention; Fig. 2, a side view, in elevation, of a locomotive frame pedestal, with an axle and driving box in half vertical transverse section, on the line a a of Fig. 3; Fig. 3, a vertical central trans-l verse section through one of the bearing portions of the driving box structure and the pedestal, and a partial side view, in elevation, of the spring seat and interposed accessories; Fig. 4, a side view, in elevation, and on an enlarged scale, of the adjoining end portions of the driving box and spring seat; Fig. 5, a view, half in plan and half in horizontal section, on the line b b of Fig. 6, of the spring seat; Fig. 7, a side view of a roller; Fig. 8, an end view of the same; Fig. 9, a plan view of one of the teeth which` cooperate with the rollers; Fig. 10, a side view; and, Fig. 11, an end view, of the same.

In the practice of my invention, referring descriptively to the specific embodiment thereof which is herein exemplified, the housings or bearing portions in which the journal bearings, 4, are located at the ends of a rigid driving box structure, 4, correspondino substantially to that set forth in Letters DPatent of the United States No.

1923. Serial No. 639,045.

1,057,220, granted and issued to F francis J. Cole, under date'ofl March 23, 1913. The driving box structure may be either formed in two sections, connected, in the longitudinal central plane ofthe locomotive, by bolts, 4d, as shown, or be integral from end to end, as preferred, being, in either case, fully adapted to comply with the conditions of existing practice. rlhe end portions of the driving box structure, 4, adjoin the driving wheels, 6, which are secured on opposite ends of the driving axle, 8, and are fitted between the jaws of pedestals, 3, Vwhich connect the upper and lower rails, l and 2, of the side frame members of the locomotive, and are provided with the usual journal bearings, 4, and` oil cellars, 4f.

The portion of the weight of the locomotive which is carried on the driving axle, 8, is transmitted to the driving box structure, 4, through springs, 9, which bear, centrally, on seats, 10a, at the ends of a Irigid spring seat or supporting beam, l0, extending transversely to the longitudinal central plane of the locomotive, and adapted to. move vertically, but not longitudinally, relatively to the side frame members. Chafing plates, 10b, are fitted between the ends of the spring seat and the inner sides of the top rails, l, of the side frame members, to take the wear resultant upon the upward and downward movements of the spring seat in service, and lubrication is afforded from oil reservoirs, 10C, at the ends of the spring seats, which are supplied through openings closed by plugs, 10e, and from 'which oil is delivered through openings in which wooden plugs, 10d, are inserted. It will, of course, be understood that the springs, 9, are connected, by hangers, at their ends, to the side frame members, either directly, or through equalizers, in the ordinary manner.

The ends of the spring sea-t` 10, are supported on the driving |box structure, 4,

through the intermediation of transversely extending resistance rollers, 11, which are interposed between thespring se-at a-nd driving box structure, adjacent to the ends of the spring seat. bearing face recesses, 4g, on the top of the driving box structure, 4, which recesses are inwardly inclined or curved from their ends to their middle transverse planes, as most clearly shown in Fig. 4, `and on similar bearing face recesses, 10f, on the bottom of the spring seat, l0, and normally rest at The rollers, ll, bear on the middle or intersecting plane of the inolines in the faces of said recesses. The degree of inclination ot the opposite inclines of the faces of the recesses is deteanined by the amount of lateral resistance or centering eiiort that is desired to be obtained. Recesses, il, formed in the ends of the rollers, ll, are engaged by teeth, 12, having dowels, 12a, on their inner sides, which teeth are secured in any suitable manner, preferably by being welded, to the opposite sides of the driving box structure and of the spring seat, the dowels fitting in corresponding periorations in said structure yand seat. rlhe middle transverse planes of the teeth, l2, coincide with those of the bearing face recesses, 10f, and 4g, and stand normally, or when the engine is on -a tangent oft the track, in line, one with the other.

ln the operation o'l' an appliance constructed substantially as above described, lateral movement is imparted to the driving box structure, by the sidewise movement of" the driving wheels, on entering a curve of vthe track, and lateral movement of the spring seat, relatively to the side trame members, is prevented by its bearing against their inside faces. The lateral movement ot the driving box structure is transmitted to the spring seat, through the engagement ot the teeth with thev end recesses ot the rollers, the teeth and rollers constituting, at all times, the connection between the driving box structure and the spring seat. The travel ot the rollers is resisted by the inclination of the bearing face recesses, the degree of which determines the percentage of resistance to tree lateral movement, and corresponding,percentage ot effort exerted to bring the members to, and maintain them in, normal central alignment.

I claim as my invention and desire to secnre by Letters Patent:

l. In a locomotive engine, the combina tion of a side trame; a drivingbox, litted, with the capacity of relative longitudinal movement, therein, and having double inclined bearing face recesses in its top; a spring seat, vertically movable, relatively to the drivingbox, `and having similar bearing` 'tace recesses in its bottom; a roller, interposed between the bearing face re cesses; and teeth, fixed to the driving box and the spring seat, and engaging said roller.

9,. In a. .locomotive engine, the combination of two side trame members; a driving box structure, having end ournal bearings, and Vl'itted, with the capacity ot relative longitudinal movement, therein, said structure having double inclined bearing falce recesses in its top, adjacent to: its journalbearings; a spring seat, vertically movable relatively to the driving box structure, and having similar bearing face recesses in its bottom,

adjacent to its ends; rollers, interposed between the bearing tace recesses; and teeth, iixed to the driving box structure and the spring seat, and engaging said rollers,

3. ln a locomotive engine late-ral motion appliance, the combination of a driving box, having double inclined bearing tace recesses in its top; a transversely extending resistance roller, resting in said bearing face recesses; and teeth, ixed on the driving box, and engaging said roller.

1l. In a locomotive engine lateral motion appliance, the combination ot side frame members, 'a rigid spring seat, litted with the capacity of relative vertical movement only, between said side frame members and having double inclined bearing face recesses underneath its ends, on each side of its bottom; chating plates, iix-ed to the side fra-me members; and oil reservoirs, located on the spring seats and communicating with the chang plates.

JAMES Gr. BLUNTa l/Vitnesses J. HOWARD W'AGAR, MADELINE N., UCKER. 

